2009 Fiscal Year Final Research Report
Neutral wind and polarization reversal of vortex.
| Project/Area Number |
19204057
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plasma science
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| Research Institution | Kyushu University |
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Principal Investigator |
田中 雅慶 Kyushu University, 総合理工学研究院, 教授 (90163576)
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| Co-Investigator(Kenkyū-buntansha) |
KONO Mitsuo 中央大学, 総合政策学部, 教授 (00038564)
YOSHIMURA Shinji 自然科学研究機構, 核融合科学研究所, 助教 (50311204)
MUTA HIROSHI 岐阜大学, 工学研究科, 准教授 (10219850)
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| Project Period (FY) |
2007 – 2009
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| Keywords | プラズマ基礎 / 渦 / 中性粒子 / 流れ構造 / レーザー誘起蛍光分光法 |
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| Research Abstract |
A high-resolution laser-induced fluorescence (LIF) spectroscopy system has been developed using a tunable diode laser. Very high resolution of 10^<-7> has been achieved in determining the Doppler shift measurement. The minimum detectable velocity of the system is 2m/s, and the performance is maintained for more than 5 hours. The flow velocity field of neutrals in a plasma vortex is visualized and the role of neutral flow on the vortex formation in a plasma is clarified.
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